Aaron, who posted some seemingly painful selfies after the fight, told TMZ he was leaving dinner with a friend last night in Boston when a huge guy approached him in the parking lot and yelled: "I heard you’re doing a show here tomorrow. This is the town of the New Kids."

As ridiculous as that sounds, Aaron claims three other guys then jumped out of a gold Chevy Malibu and started beating him down, even landing some shots on the singer's face.

Aaron claims he managed to get in a few shots before the loyal NKOTB fans took off.

He explains, "I think my knuckles might be broken, but that's what they get. People think I'm a pretty little white boy but no way. I think I won. I'm still standing."Aaron says he's performing as scheduled tonight, and he's not filing a police report because it's "girlie."